Drying and feeding mechanism for pasted strips



, R. A. HENDRICKSON. DBYING AND. FEEDING MECHANISM FOR PASTED STRIP S. APPLICATION HLED JULY 24, I920.

1 28,329, PatentedSept. 5, 1922.

2 SHEETS-SHEET I R. A. HENDRICKSON.

4 DRYING AND FEEDING MECHANISM FOR PASTED STRIPS.

I APPLICATION FILED JULY 24,1920. 1,428,329. PatentedSept. 5,1922.

2 SHEETS-SHEET 2.

Patented Sept. 5, 1922 ROBERT A. HENDRICKSON, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO. INDIANAPO- LIS SADDLERY COMPANY, OF INDIANAPOLIS, INDIANA, A G'ORPORATIONYOF INDIANA.

Application filed July 24,

T 0 aZZ to 710m it mag concern Be it known that I, ROBERT A. HENDRICK- son, a citizen of the United States, residing This paste usually consists of rubber dissolved in a suitable solvent, such as gasoline; and must be dried after being applied but before the sticking operation takes place, as otherwise it does not stick- Heretofore, generally, the strip to which the paste is to be applied has been pulled beneath a paste pot which applies the paste, and then conducted back and forth through long troughs and over suitable pulleys in order to permit the paste to dry before the strip is used; and usually the squeezingmachine which folds the leather strip on itself, around a core if there is one, or otherwise squeezes together the surfaces which are to be stuck, is relied on to feed the strip, This puts a great strain on the strip throughout its length, and results in many'breakages; and to prevent this breakage it is frequent to provide acouple of feeder girls along the path which the,

' pasted strip travels, to pull such strip by hand and relieve it of such strain. Thisvis also dangerous, for sometimes the paste catches fire, especially if a girl pulls the strip fast for a time and causes ignition by friction or static electricity; and the fire is so quickthat the girl is sometimes seriously burned. I p

' It is the object of my present invention to do away with the necessity for these long troughs, and to lessen the space required for the apparatus; and, perhaps even more important, to relieve the strip ofstrain ex erted on that portion which is passing beneath the paste pot, and thus do away with the necessity for feeder girls. It is a further object to make the application of the paste to the strip more uniform by making the feeding more uniform, and thereby to save in the amount of paste required.

The accompanying drawing illustrates my DRYING- .AND FEEDING MECHANISM FOR PAS'IiElD STRIPS.

1920. Serial No. 398,666..

invention. Fig.1 is an elevation of a feeder paster embodying my invention; and Fig. 2 is an isometric View of the feeder drum.

The leatherstrip '9 to which the paste is applied is conveniently supplied from areel 10, and passes below a paste pot 11 or other suitable paste-applying device which applies the paste to the upper surface of the strip. Thus the strip 9 passes onto thesur face of a rotating drum 12 and-is wound around such drum a number of times, in the formof a helix, withthe pasted surface of the strip'outward. From the drum the strip 9 passes to the squeezer rolls-.13, forming part of a suitable folding and squeezing machine 14;, which squeezerrolls 13 press the pasted face of the strip 9 upon whatever surface it is desired'to stick it. The squeezer.

rolls 13 may fold the strip 9 upon itself, and if desired ar ound a core strip or strips supplied to the squeezer rolls from a separate reel 16, as indicated, but the squeezing machine and the particular operations performed thereby maybe varied as desired. The squeezing machine is driven in any suitable way, as by a belt 17 from a suitably driven shaft 18. Tlie'drum 12 is driven in substantialsynchronism with the squeezer rolls 13, ,as-by a belt 19 connecting pulleys of suitable size on the squeezing machine 143 and such drum, so thatthe strip 9 may hang slack betweenthe squeezing machine and' the drum, as illustrated, and be relieved from strain. I H

y The strip 9 is not wound tight around the drum 12, but each turn is lifted there from atone or more points around the cir cumference of the drum and sl1d endwlsev of the drum so that .as' the drun rotates any point in the strip is caused to travel from one end of the drum to the other. As

shown, eachturn of the strip 9 is lifted from the drum at the top and each side, bypassing over stationary rods 20 located at such points; and hangs in aloo'se big-ht beneath the drum The rods 20 are provided with any suitable means for shifting the strips endwise ofthe drum. As shown, each rod 20 has a plurality of outward-1y projecting pins 21, and the strip 9 passes over the rod 20 between adjacentpins .21, which are so located that they act on the edge of the strip and shiftit endwise of the drum. as'the strip is lifted from the surface of the drum while passing over the rod 20. A considerable length of the strip 9 can be wound on the drum 12 in very small space, to permit the drying of the pasted surface of the strip. In order to facilitate this drying, one or more fans may be provided for blowing air, which may or may not be heated, on the surface of the drum and on the pasted face of the Strip.

In operation, the squeezer rolls 13 pull the core strip 15, if any, from the reel 16,

and fold the pasted strip 9 upon. it; or

squeeze such pasted strip upon something else, or fold it and squeeze it upon itself, if desired. The pasted strip, however, is not subject to material strain, as it hangs slack between the squeezer rolls 13 and the drum 12. The drum 12 is driven in synchronism with the squeezing machine li; and the friction of such drum on the first turn or less of the strip engaging its surface is suflicient to feed such strip 9 from the reel 10 and beneath the paste pot llwithout putting any strain on the remainder of the strip. As the strip is carried around by the drum 12, it is lifted from the surface of the drum by the rods 20, or by hanging in a loose bight at the bottom, and is slid edgewise, or endwise, of the drum, by the action of the pins 21; so that the strip 9 passes onto the drum near one end thereof and passes off the drum near the other end thereof without piling up at either end. The time required for any point on the pasted strip to pass from the paste pot 11 around the drum the necessary number of turns is suflicient to permit the paste to dry, so that when the pasted strip passes to the squeezer rolls 13 the pasted surface when squeezed onto another surface will stick fast. One operator is sufficient to operate the entire machine. The travel of the strip .9 is uni form, instead of being erky as when feeder girls are used; and by reason of this steady pull it is found in practice that much less paste is taken from the paste pot 11.

I claim as my invention:

1. In a feeder paster for pasted strips, for combination with a paste-applying device for applying paste to the face of the strip, and a squeezer machine, a rotatable drum around. which the strip passes helically after coming from the paste-applying device and from which the strip passes to the squeezer machine, saiddrum being connected to said squeezer machine to operate in substantial synchronism therewith with respect to speed ofstrip travel, and means for lifting the strip from the surface of the drum and moving it endwise of the drum at points in the helix which it forms around the drum.

2. In a feeder paster for pasted strips, for

combination with a paste-applying device for applying paste to the face of the strip, a rotatable drum around which the strip passes helically after coming from the pastesubstantial synchronism therewith with respect to speed of strip travel, and means for moving the strip endwise of the drum at points in the helix which it forms around the drum.

41:. In a feeder paster for pasted strips, for combination with a paste-applying device for applying paste to the face of the strip, a rotatable drum around which the strip passes helically after coming from the pasteapplying device, and means for moving the strip endwise of the drum at points in the helix which it forms around the drum.

5. In a feeder paster for pasted strips, for combination with a paste-applying device for applying paste to the face of the strip, and a squeezer machine, a rotatable drum around which the strip passes helically after coming from the paste-applying device and from which the strip passes to the squeezer machine, said drumbeing connected to said squeezer machine to operate in substantial. synchronism therewith with respect to speed of strip travel, and one or more stationary members over which the strip passes in its helical path around the drum so "that the strip is lifted from the drum surface by such member or members, said stationary member or members being provided with means for engaging the edge of the strip and shifting it endwise of the drum as it passes over such stationary members.

6. In a feeder paste/r for pasted strips, for combination with. a paste-applying device for applying paste to the face of the strip, av rotatable drum around which the strip passes helically after coming from the paste applying device, and one or more stationary members over which the strip passes in its helical path around the drum so thatthe strip is lifted from the drum surface by such member or members, said stationary memher or members being provided with means for engaging the. edge of the strip and shifting it endwise of the drum as it passes over such stationary members.

7. In a feeder paster for pasted strips, for combination with a paste-applying device for applying paste to the face of the strip,

a rotatable drum around which the strip passes helically after coming from the pasteapplying device, means for moving the strip endwise of the drum at points in the helix machine, said drum being connected to said which it forms around the drum, and means, squeezer machine to operate in substantial for blowing air upon said drum. synchronism therewith With respect to speed 8. In a feeder paster for pasted strips, for of strip travel.

5 combination with a paste-applying device In witness whereof, I have hereunto set 15 for applying paste to the face of the strip, my hand at Indianapolis, Indiana, this21st and a squeezer machine, a rotatable Inemday of July, A. D. one thousand nine hunber around which the strip passes after comdred and twenty. l ing from the paste-applying device, and

10 from Which the strip passes to the squeezer ROBERT A. HENDRICKSON. 

